:root {
  --ink: #182522;
  --ink-soft: #52615d;
  --paper: #f7f3eb;
  --paper-deep: #eee7da;
  --card: #fffdf8;
  --line: #dcd5c8;
  --sage: #315b4d;
  --sage-soft: #dce9e3;
  --accent: #c4553d;
  --accent-soft: #f7e2dc;
  --gold: #b7863a;
  --blue: #335b70;
  --shadow: 0 18px 55px rgba(34, 45, 40, 0.09);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shell: min(1180px, calc(100vw - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 90% 2%, rgba(183, 134, 58, 0.11), transparent 23rem),
    var(--paper);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic UI", "Noto Sans CJK JP", "PingFang SC", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  transform: translateY(-140%);
  padding: 10px 14px;
  border-radius: 8px;
  color: white;
  background: var(--ink);
}

.skip-link:focus {
  transform: translateY(0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  border-bottom: 1px solid rgba(49, 91, 77, 0.16);
  background: rgba(247, 243, 235, 0.88);
  backdrop-filter: blur(16px);
}

.site-header__inner {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 42px;
  aspect-ratio: 1;
  border-radius: 50%;
  color: var(--paper);
  background: var(--sage);
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: 20px;
  box-shadow: inset 0 0 0 5px rgba(255, 255, 255, 0.12);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  letter-spacing: 0.08em;
  font-size: 15px;
}

.brand small {
  margin-top: 1px;
  color: var(--ink-soft);
  letter-spacing: 0.12em;
  font-size: 9px;
}

.header-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-soft);
  font-size: 13px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #4f8b69;
  box-shadow: 0 0 0 5px rgba(79, 139, 105, 0.12);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(280px, 0.7fr);
  gap: clamp(40px, 8vw, 110px);
  align-items: end;
  padding-block: 88px 80px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--sage);
  letter-spacing: 0.16em;
  font-size: 12px;
  font-weight: 800;
}

.eyebrow--accent {
  color: var(--accent);
}

.hero h1 {
  margin: 0;
  max-width: 700px;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "Songti SC", serif;
  font-size: clamp(54px, 8vw, 94px);
  font-weight: 600;
  letter-spacing: -0.055em;
  line-height: 1.04;
}

.hero__lead {
  max-width: 690px;
  margin: 30px 0 0;
  color: var(--ink-soft);
  font-size: clamp(16px, 1.8vw, 20px);
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 30px;
}

.hero__meta span {
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  background: rgba(255, 253, 248, 0.54);
  font-size: 11px;
}

.hero__meta strong {
  color: var(--ink);
  font-weight: 700;
}

.hero__aside {
  position: relative;
  padding: 30px;
  border: 1px solid var(--sage);
  border-radius: var(--radius-lg) var(--radius-lg) 80px var(--radius-lg);
  background: var(--sage);
  color: white;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero__aside::after {
  content: "";
  position: absolute;
  right: -58px;
  bottom: -72px;
  width: 170px;
  height: 170px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
}

.aside-label {
  margin: 0 0 20px;
  color: rgba(255, 255, 255, 0.65);
  letter-spacing: 0.13em;
  font-size: 11px;
  font-weight: 700;
}

.aside-quote {
  margin: 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: 30px;
  line-height: 1.35;
}

.mini-checks {
  display: grid;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.mini-checks li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}

.mini-checks li::before {
  content: "✓";
  display: grid;
  place-items: center;
  width: 19px;
  height: 19px;
  border-radius: 50%;
  color: var(--sage);
  background: white;
  font-size: 11px;
  font-weight: 900;
}

.priority-section,
.school-section,
.framework {
  padding-block: 70px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.section-heading h2,
.framework h2 {
  margin: 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "Songti SC", serif;
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.section-heading > p {
  max-width: 320px;
  margin: 0 0 5px;
  color: var(--ink-soft);
  font-size: 13px;
  text-align: right;
}

.priority-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.priority-list {
  min-width: 0;
}

.priority-item {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  min-height: 96px;
  padding: 18px 26px;
  border-bottom: 1px solid var(--line);
}

.priority-item:last-child {
  border-bottom: 0;
}

.priority-date {
  text-align: center;
}

.priority-date strong,
.priority-date span {
  display: block;
}

.priority-date strong {
  color: var(--accent);
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: 27px;
  line-height: 1;
}

.priority-date span {
  margin-top: 6px;
  color: var(--ink-soft);
  letter-spacing: 0.12em;
  font-size: 10px;
}

.priority-copy strong,
.priority-copy span {
  display: block;
}

.priority-copy strong {
  font-size: 15px;
}

.priority-copy span {
  margin-top: 3px;
  color: var(--ink-soft);
  font-size: 12px;
}

.days-badge {
  min-width: 68px;
  padding: 7px 10px;
  border-radius: 999px;
  color: var(--accent);
  background: var(--accent-soft);
  font-size: 11px;
  font-weight: 800;
  text-align: center;
}

.priority-summary {
  display: grid;
  border-left: 1px solid var(--line);
  background: var(--paper-deep);
}

.metric {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 20px 28px;
  border-bottom: 1px solid rgba(49, 91, 77, 0.15);
}

.metric:last-child {
  border-bottom: 0;
}

.metric strong {
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: 36px;
  line-height: 1.1;
}

.metric span {
  margin-top: 4px;
  color: var(--ink-soft);
  font-size: 11px;
}

.metric--alert strong {
  color: var(--accent);
}

.section-heading--schools {
  margin-bottom: 22px;
}

.control-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 253, 248, 0.7);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.filter-chip {
  appearance: none;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--ink-soft);
  background: transparent;
  font-size: 12px;
  cursor: pointer;
  transition: 160ms ease;
}

.filter-chip:hover,
.filter-chip:focus-visible {
  border-color: var(--line);
  color: var(--ink);
  outline: none;
}

.filter-chip.is-active {
  color: white;
  background: var(--sage);
}

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 218px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: white;
}

.search-box:focus-within {
  border-color: var(--sage);
  box-shadow: 0 0 0 3px rgba(49, 91, 77, 0.11);
}

.search-box svg {
  width: 16px;
  fill: none;
  stroke: var(--ink-soft);
  stroke-width: 1.8;
  stroke-linecap: round;
}

.search-box input {
  min-width: 0;
  width: 100%;
  border: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
  font-size: 12px;
}

.search-box input::placeholder {
  color: #89928f;
}

.result-count {
  min-height: 24px;
  margin: 14px 4px;
  color: var(--ink-soft);
  font-size: 12px;
}

.school-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.school-card {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--card);
  box-shadow: 0 8px 28px rgba(34, 45, 40, 0.055);
  overflow: clip;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.school-card:hover {
  transform: translateY(-2px);
  border-color: #c9c0b1;
  box-shadow: 0 14px 40px rgba(34, 45, 40, 0.09);
}

.school-card[open] {
  border-color: rgba(49, 91, 77, 0.45);
  box-shadow: var(--shadow);
}

.school-card summary {
  position: relative;
  padding: 22px 24px 20px;
  list-style: none;
  cursor: pointer;
}

.school-card summary::-webkit-details-marker {
  display: none;
}

.school-card summary:focus-visible {
  outline: 3px solid rgba(49, 91, 77, 0.24);
  outline-offset: -3px;
}

.school-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.school-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 8px;
  border-radius: 999px;
  color: var(--sage);
  background: var(--sage-soft);
  font-size: 10px;
  font-weight: 800;
}

.tag--warn {
  color: #9c3e2c;
  background: var(--accent-soft);
}

.tag--outline {
  color: var(--ink-soft);
  background: transparent;
  box-shadow: inset 0 0 0 1px var(--line);
}

.expand-icon {
  position: relative;
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--paper-deep);
}

.expand-icon::before,
.expand-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 1px;
  background: var(--ink);
  transform: translate(-50%, -50%);
  transition: transform 180ms ease;
}

.expand-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.school-card[open] .expand-icon::after {
  transform: translate(-50%, -50%) rotate(0);
}

.school-title {
  margin: 17px 0 0;
  font-family: "Yu Mincho", "Hiragino Mincho ProN", "Songti SC", serif;
  font-size: 25px;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.25;
}

.school-title small {
  display: block;
  margin-top: 5px;
  color: var(--ink-soft);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", sans-serif;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.school-next {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 13px;
  align-items: center;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.school-next__date {
  min-width: 58px;
  color: var(--accent);
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: 21px;
  font-weight: 700;
  white-space: nowrap;
}

.school-next__copy strong,
.school-next__copy span {
  display: block;
}

.school-next__copy strong {
  font-size: 12px;
}

.school-next__copy span {
  margin-top: 2px;
  color: var(--ink-soft);
  font-size: 10px;
}

.school-detail {
  padding: 0 24px 24px;
  border-top: 1px solid var(--line);
}

.risk-note {
  display: flex;
  gap: 10px;
  margin-top: 20px;
  padding: 13px 14px;
  border-left: 3px solid var(--accent);
  border-radius: 3px var(--radius-sm) var(--radius-sm) 3px;
  color: #793322;
  background: var(--accent-soft);
  font-size: 12px;
}

.risk-note strong {
  flex: 0 0 auto;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.detail-block {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: #fffefa;
}

.detail-block span,
.detail-block strong {
  display: block;
}

.detail-block span {
  margin-bottom: 5px;
  color: var(--ink-soft);
  letter-spacing: 0.08em;
  font-size: 9px;
  font-weight: 800;
}

.detail-block strong {
  font-size: 12px;
  line-height: 1.55;
}

.detail-title {
  margin: 22px 0 12px;
  font-size: 13px;
  letter-spacing: 0.05em;
}

.timeline {
  position: relative;
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 67px;
  width: 1px;
  background: var(--line);
}

.timeline li {
  position: relative;
  display: grid;
  grid-template-columns: 55px 1fr;
  gap: 26px;
  min-height: 54px;
  padding: 8px 0;
}

.timeline li::before {
  content: "";
  position: absolute;
  top: 15px;
  left: 63px;
  z-index: 1;
  width: 7px;
  height: 7px;
  border: 2px solid var(--card);
  border-radius: 50%;
  background: var(--sage);
  box-shadow: 0 0 0 1px var(--sage);
}

.timeline li.is-deadline::before {
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.timeline time {
  color: var(--ink-soft);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  text-align: right;
}

.timeline-copy strong,
.timeline-copy span {
  display: block;
}

.timeline-copy strong {
  font-size: 12px;
}

.timeline-copy span {
  margin-top: 2px;
  color: var(--ink-soft);
  font-size: 10px;
  line-height: 1.45;
}

.source-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 9px;
}

.source-line strong {
  color: var(--ink);
}

.source-line a {
  color: var(--sage);
  font-weight: 800;
  text-underline-offset: 3px;
}

.source-line a:hover,
.source-line a:focus-visible {
  color: var(--accent);
}

.empty-state {
  padding: 64px 20px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-lg);
  color: var(--ink-soft);
  text-align: center;
}

.empty-state span {
  display: block;
  font-family: serif;
  font-size: 36px;
}

.framework {
  display: grid;
  grid-template-columns: 0.8fr 1.6fr;
  gap: clamp(40px, 7vw, 100px);
  align-items: start;
}

.framework__intro > p:last-child {
  max-width: 390px;
  margin: 18px 0 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.checkpoint-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ink);
  list-style: none;
}

.checkpoint-list li {
  display: grid;
  grid-template-columns: 34px 70px 1fr;
  gap: 12px;
  align-items: baseline;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line);
}

.checkpoint-list li:nth-child(odd) {
  padding-right: 22px;
}

.checkpoint-list li:nth-child(even) {
  padding-left: 22px;
  border-left: 1px solid var(--line);
}

.checkpoint-list span {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
}

.checkpoint-list strong {
  font-family: "Yu Mincho", "Hiragino Mincho ProN", serif;
  font-size: 18px;
}

.checkpoint-list small {
  color: var(--ink-soft);
  font-size: 11px;
}

.notice {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  margin-block: 40px 90px;
  padding: 22px 24px;
  border: 1px solid var(--gold);
  border-radius: var(--radius-md);
  background: #fbf1dc;
}

.notice__icon {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  color: white;
  background: var(--gold);
  font-family: serif;
  font-weight: 800;
}

.notice strong {
  font-size: 14px;
}

.notice p {
  margin: 4px 0 0;
  color: #6f5c38;
  font-size: 12px;
}

.site-footer {
  border-top: 1px solid var(--line);
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 90px;
  color: var(--ink-soft);
  font-size: 10px;
}

@media (max-width: 900px) {
  :root {
    --shell: min(100% - 32px, 760px);
  }

  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-block: 64px;
  }

  .hero__aside {
    max-width: 500px;
  }

  .priority-board,
  .framework {
    grid-template-columns: 1fr;
  }

  .priority-summary {
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .metric {
    border-right: 1px solid rgba(49, 91, 77, 0.15);
    border-bottom: 0;
  }

  .metric:last-child {
    border-right: 0;
  }

  .control-bar {
    align-items: stretch;
    flex-direction: column;
  }

  .search-box {
    min-width: 0;
  }

  .framework {
    gap: 32px;
  }
}

@media (max-width: 680px) {
  :root {
    --shell: calc(100% - 24px);
    --radius-lg: 20px;
  }

  .site-header__inner {
    min-height: 68px;
  }

  .header-status span:last-child,
  .brand small {
    display: none;
  }

  .hero {
    gap: 28px;
    padding-block: 46px 38px;
  }

  .hero h1 {
    font-size: clamp(48px, 16vw, 68px);
  }

  .hero__lead {
    margin-top: 22px;
    font-size: 15px;
  }

  .hero__meta {
    margin-top: 22px;
  }

  .hero__meta span:nth-child(3) {
    display: none;
  }

  .hero__aside {
    padding: 24px;
    border-radius: 20px 20px 54px 20px;
  }

  .aside-quote {
    font-size: 25px;
  }

  .priority-section,
  .school-section,
  .framework {
    padding-block: 48px;
  }

  .section-heading {
    align-items: start;
    flex-direction: column;
    gap: 8px;
  }

  .section-heading > p {
    text-align: left;
  }

  .priority-board {
    border-radius: 18px;
  }

  .priority-item {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 12px;
    min-height: 88px;
    padding: 15px 16px;
  }

  .priority-date strong {
    font-size: 23px;
  }

  .days-badge {
    grid-column: 2;
    justify-self: start;
    margin-top: -8px;
  }

  .priority-summary {
    min-height: 110px;
  }

  .metric {
    padding: 14px 12px;
  }

  .metric strong {
    font-size: 28px;
  }

  .metric span {
    line-height: 1.35;
  }

  .control-bar {
    padding: 10px;
    background: rgba(255, 253, 248, 0.82);
  }

  .filter-row {
    flex-wrap: nowrap;
    padding-bottom: 2px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .filter-row::-webkit-scrollbar {
    display: none;
  }

  .filter-chip {
    flex: 0 0 auto;
  }

  .school-grid {
    grid-template-columns: 1fr;
  }

  .school-card summary,
  .school-detail {
    padding-inline: 18px;
  }

  .school-title {
    font-size: 23px;
  }

  .detail-grid {
    grid-template-columns: 1fr;
  }

  .checkpoint-list {
    grid-template-columns: 1fr;
  }

  .checkpoint-list li:nth-child(odd),
  .checkpoint-list li:nth-child(even) {
    padding-inline: 4px;
    border-left: 0;
  }

  .notice {
    margin-block: 20px 64px;
    padding: 18px;
  }

  .site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 2px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}